Worden edmister



(No Model.)

W. EDMISTER. .GHURN.

No. 502,179. Patented July 25, 1 893.

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MA, d 9% ;ym' l@ Ho a1 1e 1 UNITED STATES PATENT Clar on.

WORDEN EDMISTER, OF MOUNT VERNON, OHIO, ASSIGNOR TO JACOB AST,

OF SAME PLACE.

CHURN.

SPECIFICATION forming part of Letters Patent No. 502,179, dated July 25,1893.

application filed April 11 1893.

To all whom it may concern.-

Be it known that I, WORDEN EDMISTER, a citizen of the United States,residing at Mount Vernon, in the county of Knox and State of Ohio, haveinvented certain new and useful Improvements in Ventilators for Ghurns;and I do declare the following to be a full, clear, and exactdescription of theinveution, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to the letters of reference markedthereon, which form a part of this specification.

This invention relates to certain new and useful improvements in churns,and it has for its object among others to provide an improved churn withasimple and cheap selfoperating or automatic ventilating device wherebythe gas may be automatically allowed to escape from the interior of thechurn.

. I provide simple mechanism for accomplishing this purpose, still it ispositive in its action and not liable to get out of order. The mechanismexcept I the cock or valve is arranged outside the churn where it willnot be afiected by the cream and where it can be readily repaired orreplaced by new if necessary. I further provide means for preventing thesoiling of the floor by what little froth there may escape through thetube when the valve is open to allow of the escape of the contained gas.

Other objects and advantages of the invention will hereinafter appearand the novel features thereof will be specifically defined by theappended claims.

The invention in this instance resides in the peculiar combinations, andthe construction, arrangement and adaptation of parts, all as more fullyhereinafter described, shown in the drawings, and then particularlypointed out in the claims.

The invention is clearly illustrated in the accompanying drawings,which, with the lettors of reference marked thereon, form a part of thisspecification, and in which Figure 1 is a side elevation of a churnprovided with my improvements. Fig. 2 is a section through theventilating mechanism and drip bowl. Fig. 3 is an end view of the churn.

Like letters of reference indicate like parts in all the views wherethey appear.

Referring now to the details of the drawings by letter, A designates thechurn body or cream receptacle which may be of any of the well knownforms of revolving churns, either square, round or any other desiredshape and mounted to be revolved in any suitable manner on the axis orpintles B sup ported in suitable hearings in suitable supports as A. Itshould of course be provided with a suitable cover, and in one end isformed a hole in which is fitted a tube D the inner end of which extendswithin the churn body as shown, and which is adapted to be closed by aplug 01' valve E which is fitted to the inner end of the tube so as toform a tight joint and prevent leakage when the churn is being revolved.Suitable packing may be employed if necessary. This valve or plug isnormally held so as to close the end of the tube by the lever E which ispivoted at one end as at e to any suitable device as a lug d on theouter face of the end of the churn through which thetube passes, andthis lever has pivotally connected therewith between its ends one end ofthe rod F the other end of which is connected with the plug or valve Eas shown, and the end of the lever opposite that which is pivoted isacted upon byaspring G which is confined between the said end and theend of the churn body so as to press the said end of the lever outwardand thus draw on the rod F and keep the valve or plug against or withinthe end of the tube.

H is a rub block or an abutment arranged in such a position as to beengaged by the free end of the lever at each revolution of the churn,and this block has a beveled portion hover which the end of the leverrubs as the churn is revolved as will be readily understood from Fig. 1,the block being so located with relation to the lever that it acts tooperate the lever so as to open the valve when the outlet reaches theuppermost position whereby the valve will be opened when the gas is atthe top of the churn and there is the least liability of the creamrunning out with the gas and air.

The operation will be readily understood from the foregoing descriptionwhen taken in connection with the annexed drawings. Each time the churnrevolves the free end of the lever will ride upon the rub block and asit rides upon the bevel or tapered portion thereof the spring iscompressed and the rod connected with the said lever and with the valveis forced inward thus throwing the valve from its seat and admitting ofthe escape of the air and gas from within the churn. As the churnfurther revolves the free end of the lever leaves the rub block and thespring returns the parts to their normal position and the valve closesthe inner end of the tube.

In order to catch what cream and froth es capes with the gas and preventits spilling onto the floor I have provided a means for catching thesame as it issues from the tube. It consists of a bowl I having a holefitted over the outer end of the tube so that any cream or froth thatcomes out of the tube will flow into the bowl.

J is a dish shaped piece secured to the rod F to move therewith andfitted within the bowl, which at its outer face has an opening it asshown. WVhen the frothy substance enters the tube it is carried out ofthe same with the gas and air and striking against the inner or concaveside of the dish-shaped piece will run down the same and into the bowl.It may be removed therefrom in any suitable manner, as for instance, bya suitable cock as shown at K.

The advantages of the construction above described will be readilyappreciated by those familiar with this class of devices, and the costthereof being small will bring the same within the means of any one.

Modifications in detail may be resorted to without departing from thespirit of the invention or sacrificing any of its advantages.

What I claim as new is l. The combination with a revolving churn, of avalve for closing a vent-opening in the end thereof and provided with astem, a lever pivoted on the churn to normally hold said valve in itsclosed position, a stationary rubblock having a beveled portion toengage said lever to open the valve and a bowl arranged over the outerend of the vent opening and through which the valve-stem passes,substantially as described.

2. The combination with a revolving churn, of a valve for closing avent-opening in the end thereof and provided with a stem, a leverpivoted on the churn to normally hold said valve in a closed position, astationary rubblock having a beveled portion to engage said lever toopen the valve, a bowl arranged over the outer end of the vent openingand through which the valve stem passes, and provided with a dischargepipe with cock, substantially as described.

3. The combination with a revolving churn, of a valve for closing a ventopening in the end thereof and provided with a stem, a lever pivoted onthe churn to normally hold said valve in a closed position, a stationaryrubblock having a beveled portion to engage said lever to open thevalve, a bowl arranged over the outer end of the vent opening andthrough which the valve-stem passes and provided with a discharge pipewith cock, and a dish shaped piece carried by the valve-stem to close anopening in the bowl, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

WORDEN EDMISTER.

Witnesses:

F. O. LEVERING, F. V. OWEN.

